Test Port
Runs one configured test channel.
Entry-Level Leak Tester
Z5L Single-Channel Pressure & Vacuum Decay Tester
Single-Channel Air Leak Testing
The Zaxis Z5L is an entry-level, single-channel air leak tester for production teams that need a compact, budget-friendly way to make repeatable pass/fail decisions. Its 5-inch touchscreen puts program setup and results at the station, while the 6.5 × 7 × 9 inch benchtop footprint fits efficiently beside a fixture or automation cell.
The Z5L runs pressure decay or vacuum decay leak tests in a fixed configuration: 0–30 PSI pressure decay, 0–100 PSI pressure decay, or 0 to −14 PSI vacuum decay. Choose the range and method for the part being tested, then use one test port to run the stored program for that production task.
Low internal volume, a 32-bit ADC and fast scan rates support high-sensitivity air leak measurements, with 0.00001 PSI test-result resolution. The 5-inch touchscreen supports pinch zoom, light and dark modes, and single-screen test setup; up to 100 stored programs keep repeat configurations available without rebuilding a test from scratch.
TCP/IP and USB connect the Z5L to production workflows, while optional onboard result storage and statistics support review of test outcomes. Zaxis has made USA-made leak-test equipment for more than 25 years; Zaxis leak testers are CE, ISO 9001, REACH and RoHS compliant.
Request for QuoteLeak Rate Calculator
How is Leak Rate Calculated →Why Choose the Z5L Leak Tester for Your Production Line?
The Z5L is for a production line that needs one dependable leak-test channel rather than a larger multi-channel platform. It brings the same practical fundamentals—touchscreen setup, stored programs, compact dimensions and clear connectivity—to a fixed pressure-decay or vacuum-decay configuration. That focused scope makes selection, operation and training straightforward.
A fixed configuration is a practical advantage when the process is stable. Specify 0–30 PSI or 0–100 PSI pressure decay, or 0 to −14 PSI vacuum decay, and use the tester as the dedicated station for that method. The Z5L gives operators a single visual interface for setup and results, instead of asking them to navigate a platform built for several simultaneous channels.
Test Port
Touchscreen
Pinch zoom with light and dark modes.
Resolution
32-bit ADC and low internal volume for sensitive measurements.
Stored Programs
Multiple parameter sets through one port.
Dimensions
Compact benchtop footprint.
Benefits of the Z5L Leak Tester
The Z5L brings essential leak-testing features to a single test port. Its compact platform supports the test method and pressure range the part requires while keeping program access, data options and line connections at the operator’s station.
- ✓Single-screen test setup with HDMI output.
- ✓Runs one test port.
- ✓High sensitivity from low internal volume, a 32-bit ADC and fast scan rates.
- ✓Intuitive touchscreen setup without a lengthy training session.
- ✓TCP/IP and USB communication options.
- ✓Up to 100 unique stored programs with optional onboard result storage.
- ✓Onboard statistics.
How a Z5L Leak Test Runs
A pressure-decay program is built around four timed stages. The exact pressure, timing and pass/fail limit belong to the part’s validated program; the Z5L stores up to 100 programs so an approved setup can be selected again through the single test port.
Fill
Connect the part or fixture to the Z5L test port and bring it to the selected test pressure for the configured pressure-decay program.
Settle
Allow the connected part and test volume to stabilize before evaluating the pressure signal, so the programmed cycle separates settling behavior from the measurement period.
Test
The tester measures the pressure change during the programmed test interval and compares the result with the limit saved for that program.
Vent
At the end of the cycle, release the test condition as the fixture process requires, review the pass/fail result, and prepare the single channel for the next part.
For pressure decay, the relationship among pressure change, part volume and test time determines the calculated leak rate. Use the leak-rate calculator to explore those inputs before finalizing a process, then validate the completed test on the actual part and fixture.
Available Zaxis Z5L
Leak Test Types
The Z5L runs pressure decay or vacuum decay. Configure the unit for pressure decay at 0–30 PSI or 0–100 PSI, or for vacuum decay from 0 to −14 PSI. The selected configuration defines its one-channel process.
Where a Z5L Fits
A fixed-range, single-channel tester is suited to workflows where one part family or a defined test method needs a dedicated station. The following Zaxis resources explain representative leak-test applications and process considerations; the actual method, fixture and limit must be selected for the part.
Medical fluid bags
Review pressure-decay considerations for fluid bags and related sealed medical components.
Read more →Automotive components
Explore leak testing concepts for automotive parts and production requirements.
Read more →EV manufacturing
Learn why leak testing is important in EV manufacturing applications.
Read more →IP-rated enclosures
See how air leak testing supports work toward an ingress-protection target.
Read more →Single-cavity fixtures
Use a dedicated test port with a fixture designed to seal and locate one part or cavity.
Read more →Production troubleshooting
Understand common sources of apparent leaks before changing an approved test limit.
Read more →Technical Specifications
Specifications below define the Z5L’s fixed configurations: 0–30 PSI pressure decay, 0–100 PSI pressure decay, or 0 to −14 PSI vacuum decay. Confirm the required option before ordering, especially when a part specification calls for a particular method or test pressure.
- Dimensions
- 6.5” wide, 7” high, 9” deep
- Resolution
- 0.00001 PSI test result resolution
- Test Port Fitting
- 1/8″ NPTF female bulkhead
- Pressure Range
- 0 to 30 or 0 to 100 PSIG of Positive Pressure, 0 to -14 PSI of Vacuum
- Display
- 5” touch screen, pinch zoom, light & dark mode, single screen test setup
- Performance
- 32-bit ADC
- Regulator
- Built-in manual regulator
- Leak Standard
- Optional calibrated leak tool to prove your test setup
- Stored Programs
- 100 – allows you to run multiple parameters through a single port
- Memory
- Optional onboard storage of test results with statistics
- Connectivity/Power
- USB, TCP/IP
Compare Leak
Testing Performance
Choose the Z5L when a dedicated, entry-level single-channel station and a fixed pressure-decay or vacuum-decay range fit the work. Choose the Z5 when the process needs up to four channels or the broader 2–1,000 PSIG pressure range described for that model. Both use a 5-inch touchscreen, but the Z5L is the focused option for one configured test port; the Z5 is the more flexible multi-channel platform.
| Test Types |  Zaxis Z8 |  Zaxis Z5 |  Zaxis Z1 |  Zaxis Z5L |  Zaxis Z8N |  VM3 Volumetric |
|---|---|---|---|---|---|---|
| Pressure Decay | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
| Vacuum Decay | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
| Occlusion | ✓ | ✓ | ✓ | ✓ | ✓ | × |
| Thermal mass flow | ✓ | ✓ | ✓ | × | ✓ | × |
| Laminar mass flow | ✓ | × | × | × | × | × |
| Burst | ✓ | ✓ | ✓ | × | ✓ | × |
| Pressure Cracking | ✓ | ✓ | × | × | ✓ | × |
| Chamber | ✓ | ✓ | ✓ | × | ✓ | × |
| Back Pressure Flow | ✓ | ✓ | × | × | ✓ | × |
| High pressure (>200 psi) | ✓ | ✓ | ✓ | × | ✓ | × |
| Volumetric Decay | × | × | × | × | × | ✓ |
Z5L Leak Tester FAQ
Is the Z5L a single-channel leak tester?
Yes. The Z5L is a single-channel configuration that runs one test port.
Which test methods does the Z5L support?
The Z5L runs pressure decay and vacuum decay. It is available as 0–30 PSI pressure decay, 0–100 PSI pressure decay, or 0 to −14 PSI vacuum decay.
What is the difference between the Z5L and the Z5?
The Z5L is the entry-level, single-channel option with fixed 0–30 PSI or 0–100 PSI pressure-decay configurations, or 0 to −14 PSI vacuum decay. The Z5 supports up to four channels and pressure ranges from 2 to 1,000 PSIG, giving it substantially broader configuration flexibility.
What resolution does the Z5L offer?
The Z5L resolves test results to 0.00001 PSI. The rejectable leak rate for a particular part still depends on the tested volume, pressure change, test time, fixture and validated process.
How many programs can the Z5L store?
The Z5L stores 100 programs, allowing multiple parameter sets through the single port. Optional onboard result storage with statistics is also available.
How does the Z5L connect to a line or computer?
The Z5L supports USB and TCP/IP for connection to a line controller or computer.
Does the Z5L have a touchscreen?
Yes. It has a 5-inch touchscreen with pinch zoom, light and dark mode, single-screen test setup and HDMI output.
Can the Z5L help verify a test setup?
An optional calibrated leak tool can verify a test setup. Use it within the documented validation and calibration process for the test station.
Z5L Resources
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